Gynvael Coldwind
Managing Director at HexArcana Cybersecurity
Zurich, Zurich, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolGynvael Coldwind is a cybersecurity leader and hands-on engineer with 15+ years of experience focused on low-level systems, reverse engineering, and offensive security. He spent the bulk of his career on Google’s information security team and now leads HexArcana Cybersecurity as Managing Director, delivering training, research, and consulting. Author of the bestselling Polish book "Zrozumieć Programowanie" and co-author of a practical reverse engineering text, he couples deep technical expertise with clear technical communication through articles, podcasts, and talks. Co-founder and former captain of the elite Dragon Sector CTF team, he has a track record of building competitive security communities and events like Hackeler8 and the experimental magazine Paged Out!. A Pwnie Award winner for innovative research, he’s known for bridging academic rigor with practical tool and exploit development across C, C++, Java, and Python. Based in Zurich, he brings rare experience turning low-level research into impactful, real-world security programs.
15 years of coding experience
16 years of employment as a software developer
inż, Computer Science, inż, Computer Science at Wrocław University of Science and Technology
English, Polish
Github Skills (46)
json10
ctf10
security10
google10
iconv9
cbor9
msgpack9
json-parser9
bson9
loader9
map-editor9
json-serialization9
messagepack9
tilesets9
cpp8
Programming languages (6)
Github contributions (5)
gynvael/random-stuff
May 2017 - Jan 2023
Contributions:29 commits, 34 pushes, 1 branch in 5 years 9 months
gynvael/zrozumiec-programowanie
Jan 2016 - Oct 2022
Contributions:1 review, 7 commits, 3 PRs in 6 years 10 months
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